154874897 has 2 divisors, whose sum is σ = 154874898. Its totient is φ = 154874896.

The previous prime is 154874869. The next prime is 154874959. The reversal of 154874897 is 798478451.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122567041 + 32307856 = 11071^2 + 5684^2 .

It is an emirp because it is prime and its reverse (798478451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154874897 - 2¹² = 154870801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (154874807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77437448 + 77437449.

It is an arithmetic number, because the mean of its divisors is an integer number (77437449).

Almost surely, 2^154874897 is an apocalyptic number.

It is an amenable number.

154874897 is a deficient number, since it is larger than the sum of its proper divisors (1).

154874897 is an equidigital number, since it uses as much as digits as its factorization.

154874897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257920, while the sum is 53.

The square root of 154874897 is about 12444.8743264044. The cubic root of 154874897 is about 537.0239774661.

The spelling of 154874897 in words is "one hundred fifty-four million, eight hundred seventy-four thousand, eight hundred ninety-seven".